Experimental investigation of the aerodynamic drag of roof-mounted insulators for trains

dc.contributor.authorTschepe, Jonathan
dc.contributor.authorMaaß, Jörg-Torsten
dc.contributor.authorNayeri, Christian Navid
dc.contributor.authorPaschereit, Christian Oliver
dc.date.accessioned2021-01-11T15:41:46Z
dc.date.available2021-01-11T15:41:46Z
dc.date.issued2020-09-01
dc.date.updated2020-07-09T10:51:46Z
dc.descriptionThis publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.en
dc.descriptionDieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.de
dc.description.abstractThis paper presents the results of experimental investigations on the aerodynamic drag of roof-mounted insulators for use on low- and high-speed trains. Wind tunnel investigations at different Reynolds numbers in the subcritical, critical, and supercritical flow regime were performed, in addition to investigations using wall-mounted cylinders. Furthermore, the impact of insulator sheds made of flexible material was analyzed. For a better understanding of the aerodynamic behavior of the insulators when mounted on trains, different boundary conditions representing realistic configurations as found on the roof of trains were simulated. From the measured drag, the energy demand to overcome the aerodynamic resistance of different types of insulators was calculated. Depending on the above mentioned boundary conditions, a noticeable contribution of the insulators to the entire train's aerodynamic drag could be observed. With flexible insulator sheds, a further increased air resistance was observed with the onset of fluttering. Similar to the cylinder, the aerodynamic behavior of the insulators depends on the respective Reynolds number.en
dc.identifier.eissn2041-3017
dc.identifier.issn0954-4097
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/12411
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-11253
dc.language.isoenen
dc.relation.ispartof10.14279/depositonce-14797en
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.ddc600 Technik, Technologiede
dc.subject.otheraerodynamicsen
dc.subject.otherinsulatoren
dc.subject.otherdragen
dc.subject.othertrainen
dc.subject.othercylinderen
dc.titleExperimental investigation of the aerodynamic drag of roof-mounted insulators for trainsen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.doi10.1177/0954409719867537en
dcterms.bibliographicCitation.issue8en
dcterms.bibliographicCitation.journaltitleProceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transiten
dcterms.bibliographicCitation.originalpublishernameSAGEen
dcterms.bibliographicCitation.originalpublisherplaceLondonen
dcterms.bibliographicCitation.pageend846en
dcterms.bibliographicCitation.pagestart834en
dcterms.bibliographicCitation.volume234en
tub.accessrights.dnbdomain*
tub.affiliationFak. 5 Verkehrs- und Maschinensysteme>Inst. Strömungsmechanik und Technische Akustik (ISTA)>FG Experimentelle Strömungsmechanikde
tub.affiliation.facultyFak. 5 Verkehrs- und Maschinensystemede
tub.affiliation.groupFG Experimentelle Strömungsmechanikde
tub.affiliation.instituteInst. Strömungsmechanik und Technische Akustik (ISTA)de
tub.publisher.universityorinstitutionTechnische Universität Berlinen
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